Ten Versus Fifteen Centimeter Pouch in IPAA Surgery

This surgical trial compares two sizes of intestinal pouches (10 cm vs. 15 cm) used in a procedure called ileal pouch-anal anastomosis (IPAA), commonly performed for ulcerative colitis or a hereditary colon condition called FAP. The goal is to find which pouch size results in better bowel function. **You may be eligible if...** - You are undergoing IPAA surgery for ulcerative colitis or familial adenomatous polyposis (FAP) - Your sphincter function is normal - The surgeon determines during the operation that both pouch sizes are technically feasible without tension **You may NOT be eligible if...** - You have impaired sphincter function - The surgeon determines only one pouch size is technically possible during the operation Talk to your doctor to see if this trial is right for you.